我认为这很少是关于你在课堂上学到的东西——它主要是关于你问自己的问题。
Books are bridges—between people, places, and times.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
In the attosecond world, time is not a river but a series of snapshots waiting to be captured.
相信我，这世上没有“他们”。（U2《Invisible》的歌词：“There's no them / There’s only us”）
